Functional equations and inequalities : solutions and stability results / John Michael Rassias [and three others]. - xvi, 380 pages ; 25 cm. - Series on concrete and applicable mathematics ; vol. 21 . Includes bibliographical references and index. ISBN: 9789813149977 (pbk : alk. paper) Subjects--Topical Terms: Functional equations.Inequalities (Mathematics) LC Class. No.: QA431 / .F86 2017